In our last sound for video session we covered high pass filters. One thing I showed was that applying a high pass filter can mess with your waveform's symmetry, essentially robbing you of headroom. Then I showed that the RX5 high pass filter, didn't see to have that effect.

It turns out that RX's digital high pass is what is called a "Linear Phase EQ" which means that it is generally won't change the phase of your waveform when applying a high pass. That's a good thing.